In a book my daughter is reading, I found the following usage of the unfamiliar symbols:
But those words dont help. So I reach over, wipe away his tear with the side of my thumb, and say the only words I know will calm him: "'"Frog, you are looking quite green."'"
David sniffles. "'"But I always look green," said Frog. "I am a frog."'" I pause, pretending I don't remember what comes next, though I can do the entire book word for word, by heart.
"'"Today you look very green, even for a frog," said Toad.'" David looks at me.